†family Lumectospongiidae Rigby and Chatterton 1989 (glass sponge)
Full reference: J. K. Rigby and B. D. E. Chatterton. 1989. Middle Silurian Ludlovian and Wenlockian sponges from Baillie-Hamilton and Cornwallis Islands, Arctic Canada. Geological Survey of Canada Bulletin 391:1-69
Parent taxon: Lyssacinosa according to J. K. Rigby and B. D. E. Chatterton 1989
Sister taxa: Brachiospongioidea, Brevicirrus, Euplectellidae, Flexuospiculata, Leucopsacasiidae, Stauractinellidae, Acanthospongia, Calathospongia, Caulophacus, Colpospongia, Crateromorpha, Euplectella, Foerstella, Lasiothrix, Malumispongium, Oncosella, Opeamorphus, Palaeosaccus, Proeuplectella, Pyritonema, Regardrella, Rosella, Testispongia, Rossellidae, Leucopsacidae
Subtaxa: Lumectospongia
Ecology: stationary epifaunal suspension feeder